Purpose: The purpose of this paper to develop an inventory model for instantaneous deteriorating items with the consideration of the facts that the deterioration rate can be controlled by using the preservation technology (PT) and the holding cost & demand rate both are linear function of time...

In this paper we develop an inventory model, to determine the optimal ordering quantities, for a set of two substitutable deteriorating items. In this inventory model the inventory level of both items depleted due to demands and deterioration and when an item is out of stock, its demands are...

In this paper, a deterministic inventory model is developed for deteriorating items in which shortages are allowed and partially backlogged. Deterioration rate is constant, Demand rate is linear function of time, backlogging rate is variable and is dependent on the length of the next...

In this paper, we considered a deterministic inventory model with time-dependent demand and time-varying holding cost where deterioration is time proportional. The model considered here allows for shortages, and the demand is partially backlogged. The model is solved analytically by minimizing...

This paper consider the problem of finding optimal critical levels for an inventory system for multiitem with multiple demand classes, Poisson demand process, lost sales and ample supply. The ordering policy is assumed to be the (S -1, S) type i.e. replacement item is ordered as soon as a unit...